Ryuutarou is Rizumu's father and Sonata Amamiya's husband. He'd always dreamed of becoming a superstar—you can still see that ambition in the way he dresses—but gave up those dreams when Sonata's career took off. He became a stay-at-home dad instead, and honestly, he never quite got over it.
When the story starts, Sonata's already left the household, and Ryuutarou's still dealing with that hurt. It shaped how he raises Rizumu; he's fiercely protective of her, determined to keep her from going through what he experienced or from leaving like her mother did.
Content compiled by AnimeList.moe from publicly available sources.
